[gn build] (manually) merge cd84bfb

Author: nico

llvm/utils/gn/secondary/clang-tools-extra/test/BUILD.gn

@@ -34,7 +34,7 @@ write_lit_config("lit_site_cfg") {
     "CLANG_TOOLS_DIR=" + rebase_path("$root_out_dir/bin"),
     "LLVM_LIT_TOOLS_DIR=",  # Intentionally empty, matches cmake build.
     "LLVM_TOOLS_DIR=" + rebase_path("$root_out_dir/bin"),
-    "PYTHON_EXECUTABLE=$python_path",
+    "Python3_EXECUTABLE=$python_path",
   ]
 
   if (clang_enable_static_analyzer) {

llvm/utils/gn/secondary/clang/test/BUILD.gn

@@ -61,7 +61,7 @@ write_lit_config("lit_site_cfg") {
     "LLVM_HOST_TRIPLE=$llvm_current_triple",
     "LLVM_LIT_TOOLS_DIR=",  # Intentionally empty, matches cmake build.
     "LLVM_USE_SANITIZER=",
-    "PYTHON_EXECUTABLE=$python_path",
+    "Python3_EXECUTABLE=$python_path",
     "USE_Z3_SOLVER=",
   ]
 

llvm/utils/gn/secondary/compiler-rt/test/BUILD.gn

@@ -40,7 +40,7 @@ write_cmake_config("lit_common_configured") {
     "COMPILER_RT_RESOLVED_TEST_COMPILER=" +
         rebase_path("$root_build_dir/bin/clang"),
     "COMPILER_RT_TEST_COMPILER_ID=Clang",
-    "PYTHON_EXECUTABLE=$python_path",
+    "Python3_EXECUTABLE=$python_path",
     "COMPILER_RT_DEBUG_PYBOOL=False",
     "COMPILER_RT_INTERCEPT_LIBDISPATCH_PYBOOL=False",
     "COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR=" +

llvm/utils/gn/secondary/llvm/test/BUILD.gn

@@ -64,7 +64,7 @@ write_lit_config("lit_site_cfg") {
     "LLVM_NATIVE_ARCH=$native_target",
     "LLVM_USE_INTEL_JITEVENTS=0",
     "LLVM_USE_SANITIZER=",
-    "PYTHON_EXECUTABLE=$python_path",
+    "Python3_EXECUTABLE=$python_path",
     "TARGETS_TO_BUILD=$llvm_targets_to_build_string",
     "TARGET_TRIPLE=$llvm_target_triple",